Standards STN - Slovak standards - Page 881

Devices to prevent pollution by backflow of potable water - Air gap with circular overflow (restricted) - Family A, type F

Standard published on 1.11.2005

Devices to prevent pollution by backflow of potable water - Air gaps with minimum circular overflow (verified by test or measurement) - Family A, type G

Standard published on 1.11.2005

Non controllable backflow preventer with different pressure zones - Family C, type A

Standard published on 1.12.2005

Valves and fittings for buildings and devices to prevent pollution by backflow of potable water - Polymer parts and housings under internal pressure and without external loads

Standard published on 1.3.2025

Industrial valves - Steel check valves

WITHDRAWN published on 1.12.2006

Water work fittings. Earth sets. Dimensions

Standard published on 1.7.1988

Covers for gate valves, globe valves, hydrants. Dimensions

Standard published on 1.4.1989

Cast-iron inlet covers and gratings. Well lids

WITHDRAWN published on 1.6.1983

Cast-iron products for sewerage. Well lid key

WITHDRAWN published on 1.3.1962

Water work fittings. Boring pipe boxes with ball valves, PN 10. Dimensions

WITHDRAWN published on 1.6.1973